no banana@piefed.world to Lemmy Shitpost@lemmy.worldEnglish · 2 个月前So wise.lemmy.imagisphe.reimagemessage-square97linkfedilinkarrow-up1860arrow-down110
arrow-up1850arrow-down1imageSo wise.lemmy.imagisphe.reno banana@piefed.world to Lemmy Shitpost@lemmy.worldEnglish · 2 个月前message-square97linkfedilink
minus-squareqarbone@lemmy.worldlinkfedilinkEnglisharrow-up2·edit-22 个月前I go for finding percentage factors. 4%? That’s just 1% * 4. 1% of 7 = 0.07 * 4 = 0.28 14%? That’s just 10% + 1% * 4 = 0.7 + 0.07 * 4 = 0.98 You tell me it’s decimal, then I’m gonna Decimal.
minus-squarestickyprimer@lemmy.worldlinkfedilinkarrow-up1arrow-down1·2 个月前Keeping the decimal in the right place is the trick for me when I do it in my head.
I go for finding percentage factors.
4%? That’s just 1% * 4. 1% of 7 = 0.07 * 4 = 0.28
14%? That’s just 10% + 1% * 4 = 0.7 + 0.07 * 4 = 0.98
You tell me it’s decimal, then I’m gonna Decimal.
Keeping the decimal in the right place is the trick for me when I do it in my head.